<template>
  <page-container>
    <!-- PageHeader 第二种使用方式 (v-slot) -->
    <template #content>
      将一个冗长或用户不熟悉的表单任务分成多个步骤，指导用户完成。
    </template>
    <a-card :bordered="false">
      <a-steps class="steps" :current="currentTab">
        <a-step title="填写转账信息" />
        <a-step title="确认转账信息" />
        <a-step title="完成" />
      </a-steps>
      <div class="content">
        <step1 v-if="currentTab === 0" @nextStep="nextStep" />
        <step2 v-if="currentTab === 1" @nextStep="nextStep" @prevStep="prevStep" />
        <step3 v-if="currentTab === 2" @prevStep="prevStep" @finish="finish" />
      </div>
    </a-card>
  </page-container>
</template>

<script>
    import Step1 from './Step1'
    import Step2 from './Step2'
    import Step3 from './Step3'

    export default {
        name: 'StepForm',
        components: {
            Step1,
            Step2,
            Step3
        },
        data() {
            return {
                currentTab: 0,
                // form
                form: null
            }
        },
        methods: {

            // handler
            nextStep() {
                if (this.currentTab < 2) {
                    this.currentTab += 1
                }
            },
            prevStep() {
                if (this.currentTab > 0) {
                    this.currentTab -= 1
                }
            },
            finish() {
                this.currentTab = 0
            }
        }
    }
</script>

<style lang="less" scoped>
    .steps {
        max-width: 750px;
        margin: 16px auto;
    }
</style>
